3 * Test driver for universal hashing
5 * (c) 2009 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the mLib utilities library.
12 * mLib is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Library General Public License as
14 * published by the Free Software Foundation; either version 2 of the
15 * License, or (at your option) any later version.
17 * mLib is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Library General Public License for more details.
22 * You should have received a copy of the GNU Library General Public
23 * License along with mLib; if not, write to the Free
24 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
28 /*----- Header files ------------------------------------------------------*/
35 /*----- Main code ---------------------------------------------------------*/
37 static int verify(dstr
*v
)
47 static const int step
[] = { 0, 1, 5, 6, 7, 8, 23, -1 };
49 /* --- Set up for using this key --- */
51 k
= *(uint32
*)v
[0].buf
;
52 h
= *(uint32
*)v
[2].buf
;
53 unihash_setkey(&ui
, k
);
55 /* --- Hash the data a lot --- */
57 for (i
= 0; step
[i
] >= 0; i
++) {
60 hh
= unihash(&ui
, v
[1].buf
, v
[1].len
);
62 hh
= UNIHASH_INIT(&ui
);
67 hh
= unihash_hash(&ui
, hh
, p
, c
);
74 fprintf(stderr
, "\nunihash failed\n");
75 fprintf(stderr
, " key = %08lx\n", (unsigned long)k
);
76 fprintf(stderr
, " data = %s\n", v
[1].buf
);
77 fprintf(stderr
, " step = %d\n", step
[i
]);
78 fprintf(stderr
, " expected = %08lx\n", (unsigned long)h
);
79 fprintf(stderr
, " computed = %08lx\n", (unsigned long)hh
);
85 static const test_chunk tests
[] = {
86 { "hash", verify
, { &type_uint32
, &type_string
, &type_uint32
} },
90 int main(int argc
, char *argv
[])
92 test_run(argc
, argv
, tests
, "unihash.in");
96 /*----- That's all, folks -------------------------------------------------*/